File file = File.createTempFile("testGetAttributes", "", new File(basedir + File.separator + "target"));
Manifest m = new Manifest();
m.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0");
m.getMainAttributes().put(new Attributes.Name("Header"), "value");
JarOutputStream jar = new JarOutputStream(new FileOutputStream(file), m);
jar.finish();
jar.close();
Attributes attributes = this.builder.getAttributes("http://x", file);
assertThat(attributes.getValue("Header").toString(), equalTo("value"));
file.delete();